Loly, do you mean you'll cannibalize the required components for the 3490 by unsweating them off the 3790 board? Why not just swap the screens if they're the same and convert the 3790 to 3490? You can always go back if faced with bad accuracy.
@mallard2
Loly is right, my battery was OK but yours is dead [open circuit]. You have a much easier fix.![]()
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